Retired First Sergeant Christine Mullin earned her Bachelor of Science Degree in Criminal Justice from Saint Edward’s University in Austin, Texas. She spent 23 years as a Maryland State Trooper serving and protecting the citizens of Maryland. While serving as a Maryland State Trooper, First Sergeant Mullin worked 16 of her 23-year career as a criminal investigator. Her assignments over the years provided extensive experience in child sexual abuse investigations, major narcotics investigations, asset forfeiture investigations, and property crimes. Upon her retirement in 2018, First Sergeant Mullin was recruited by Sheriff Jeffrey Gahler of the Harford County Sheriff’s Office for employment as a Sex Offender Compliance Investigator where she remains employed today.